Combined house speaking and signaling apparatus



2Sheets Sheet 2.

G. HEISLER.

Combined House Speaking and Signaling Apparatus.

No. 225,055. a Patented Mar. 2, 1880.

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UNITED ST TES PATENT OFFICE CHARLES HEISLER, OF ST. LOUIS, MISSOURI.

COMBINED HOUSE SPEAKING AND SIGNAL'ING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 225,055, dated March 2, 1880,

Application filed August 9, 1879.

ing specification is a full, clear, and exact letters of reference marked thereon.

This invention consists in the arrangement of the mouth-piece of the speaking-tube and push knob or knobs of the signaling apparatus in a single frame, as will hereinafter more fully appear.

In the drawings, Figure 1 is a vertical section of a building illustrating the application of my invention. Fig. 2 is an elevation of a single mouthpiece and push-knob. Fig. 3 is a similar view, showing three push-knobs. Fig. 4 is a cross-section of same. Fig. 5 is a detail view of the movable mouth-piece.

As in my former patent, a single main speaking-tube, A, is used in the building, having branches a extending to the various rooms of the same. This pipe or tube is used in connection with-a single wire to communicate signals between the various rooms of the building, the said speaking-tube being used as one conductor, and an ordinary wire for the other. 1

The kitchen B will be supplied with an mouth-piece, a, and two push-knobs, E, for

signaling, respectively, to the kitchen and servants room.

The rooms I and J will have a single mouthpiece, a, and push-knob E, for signaling to the kitchen.

The dining-room or parlor K will have a mouth-piece, a, and two push-knobs for signaling, respectively, to the kitchen and stable, the pipe andwire extending to the stable being shown at L.

The mouth-piece a and the housing for the push-knobs E are cast together in one piece and project back fromthe face-plate E, so that the same can be set in flush with the wall.

Any number required of the push-knobs E for signaling to the various rooms or stations can be arranged together in one plate in connection with a single mouth-piece.

In Fig. 4 I have shown a single mouthpiece and a single push-knob, and in Fig. 5 a a single mouth-piece with four push-knobs.

The manner of making the circuit between the wires may be any of the usual methods. 1 have shown an insulating-plate of wood, 6, carrying a spring, c, and a metal plate, 6 which the spring comes in contact with to complete the circuit when the knob is pushed back.

In Fig. 5 I have shown the combined mouthpiece and push-knob attached to a flexible tube, E to form a movable speaking and signaling attachment, the flexible tube being pro vided at one end with the mouth-piece a and push knob or knobs E, and at the other end with a tapering metal tube,E for insertion in the stationary mouth-piece attached to the wall. The signaling-wires e from these pushknobs will be inserted in holes 0 of the faceplate E, to make connections to the main signaling-wires.

The cover a for the mouth-pieces may be 'simply an outsidehinged plate, or the plate may be arranged in any other suitable manner and operated to open by the electric current that gives the signal, one mode of doing which is described in my former patent, No. 209,760.

Having thus fully described my invention, what I claim is 1. The speaking-tube mouthpiece a" and housing for the push knob or knobs E, formed in one piece, substantially as set forth.

2. The combination of a combined mouthpiece, a, and signaling push-knob E with a flexible tube, E substantially as set forth.

3. The combination, with a push-knob and mouth-piece fixedly attached to the wall, of the movable mouth piece, signaling pushknobs, and flexible tube E as and for the purpose set forth.

In testimony of said invention I have hereunto set my hand this lst day of August, 1879. In presence of CHAS. HEISLER.

Bonner Bonus, FRANK DEFFRY. 

